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Finding the Third Proportional to 11,838.88 and 18,380.75

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Solution

The third proportional to 11,838.88 and 18,380.75 is: 28,537.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,838.88 : 18,380.75 = 18,380.75 : x
  2. Step 2: Convert to fraction form
    11,838.88/18,380.75 = 18,380.75/x
  3. Step 3: Cross multiply
    11,838.88x = 18,380.75 × 18,380.75
  4. Step 4: Simplify right side
    11,838.88x = 337,851,970.56
  5. Step 5: Solve for x
    x = 337,851,970.56/11,838.88
  6. Step 6: Final answer
    x = 28,537.51

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.